Falling point marking device for foundation pit blasting flying stone trajectory tracking and identification

Abstract

The utility model discloses a drop point marking device for tracking and identifying a flying rock trajectory in foundation pit blasting, and aims to solve the problems that a shovel and white lime are used for marking in existing foundation pit blasting, local thick and thin marking lines are not uniform, and great material waste is caused. The device comprises a storage hopper and a discharge port formed in the bottom end of the storage hopper, a fixing plate is fixedly connected to the bottom end of the storage hopper, racks are fixedly connected to the left side and the right side of the upper surface of the fixing plate, an arc-shaped groove is formed in the lower surface of the fixing plate and communicates with the discharge port, and two side plates are fixedly connected to the left side and the right side of the lower surface of the fixing plate. By arranging the storage hopper, the rack and the rolling wheel, when the lime marking device is used, lime is poured into the storage hopper, then the device is pulled to rotate around the rolling wheel, and the lime in the storage tank can uniformly fall on the ground at the moment, so that the marked lime white line is more uniform, the waste of materials is avoided, and the lime marking device is very convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of blasting engineering technology, specifically relating to a landing point marking device for tracking and identifying the trajectory of flying rocks during foundation pit blasting. Background Technology

[0002] With economic development and increased engineering construction, blasting has attracted more attention. As a science and technology, blasting has a wide range of applications, but its application in engineering is undoubtedly the most important and common. Mining, railway and highway construction use drilling and blasting to excavate tunnels, water conservancy projects also use it, and cities use it to demolish buildings, using the huge energy generated by explosives to destroy the original structure of an object.

[0003] Existing foundation pit blasting projects are relatively dangerous operations, often resulting in falling rocks that damage buildings or people. When conducting area blasting, in order to protect personnel within the area, it is usually necessary to mark the danger zone to prevent personnel from entering the area where the rocks will fall. Currently, shovels and quicklime are used for marking, but when using them, the marked quicklime lines are often uneven, and the thickness of the marking lines in some areas has a large error, often resulting in a lot of material waste. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a landing point marking device for tracking and identifying the trajectory of flying rocks in foundation pit blasting. This device aims to solve the problem that existing foundation pit blasting projects use shovels and quicklime for marking, which not only results in uneven marking lines of varying thickness in some areas but also causes significant material waste.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a landing point marking device for tracking and identifying the trajectory of flying rocks in foundation pit blasting. The device includes a storage hopper and a discharge port opened at the bottom of the storage hopper. A fixed plate is fixedly connected to the bottom of the storage hopper. A frame is fixedly connected to both the left and right sides of the upper surface of the fixed plate. An arc-shaped groove is opened on the lower surface of the fixed plate, and the arc-shaped groove communicates with the discharge port. Two side plates are fixedly connected to the left and right sides of the lower surface of the fixed plate. A rolling wheel is rotatably connected between the two side plates. Multiple storage grooves are opened on the outer surface of the rolling wheel. The upper surface of the rolling wheel is sealed and rotates inside the arc-shaped groove.

[0008] Preferably, the frame includes a fixed block and two L-shaped rods. One end of the L-shaped rod is fixedly connected to a fixed plate, and the other end of the L-shaped rod is fixedly connected to the fixed block. A pull rod is provided on the fixed block, and a handle is fixedly connected to the other end of the pull rod.

[0009] Furthermore, the fixing block has a threaded hole, the pull rod is threaded into the threaded hole and fixedly connected to the limit block, and the top of the outer surface of the pull rod is threaded with a lock nut.

[0010] Furthermore, reinforcing rods are fixedly connected to both the front and rear sides of the L-shaped rod, and the other end of the reinforcing rod is fixedly connected to the fixing plate.

[0011] Furthermore, there are two rollers, and a rotating shaft is rotatably connected between the two side plates via a bearing. The two rollers are fixedly connected to the left and right sides of the outer surface of the rotating shaft.

[0012] Furthermore, a horizontal plate is fixedly connected inside the storage hopper, and two sliding rods are slidably inserted into the horizontal plate. The top of the sliding rods is fixedly connected to an L-shaped rod by a pull rope, and a sealing block corresponding to the discharge port is fixedly connected to the bottom of the sliding rods. A spring is sleeved on the outer surface of the sliding rods.

[0013] Furthermore, connecting plates are fixedly connected to the back of the two L-shaped rods, hooks are fixedly connected to the connecting plates, and hanging plates corresponding to the hooks are fixedly connected to the pull rope.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, by setting up a storage hopper, frame, and rolling wheels, allows lime to be poured into the storage hopper before use. Then, the sealing block is moved away from the discharge port and the spring is compressed until the hanging plate is moved into the hook. At this time, the stored lime enters the storage trough on the rolling wheels from the discharge port under the action of gravity. When in use, simply pull the handle to make the device rotate around the rolling wheels. At this time, the lime in the storage trough will fall evenly on the ground, making the marked white lime lines more uniform and avoiding material waste. It is very convenient to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model.

[0019] Figure 3 This is the utility model Figure 1 A magnified structural diagram of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0021] Figure 5 This is the utility model Figure 4 A magnified structural diagram at point B in the middle.

[0022] Figure 6 This is a bottom view of the structure of this utility model.

[0023] The markings in the attached diagram are as follows: 1. Storage hopper; 2. Discharge port; 3. Fixing plate; 4. Frame; 5. Arc groove; 6. Side plate; 7. Roller; 8. Storage trough; 9. Rotating shaft; 10. Horizontal plate; 11. Slide rod; 12. Pull rope; 13. Sealing block; 14. Spring; 15. Connecting plate; 16. Hook; 17. Hanging plate; 401. Fixing block; 402. L-shaped rod; 403. Pull rod; 404. Handle; 405. Limiting block; 406. Locking nut; 407. Reinforcing rod. Detailed Implementation

[0024] This specific embodiment is a landing point marking device for tracking and identifying the trajectory of flying rocks from foundation pit blasting. Its structural schematic diagram is shown below. Figures 1-6 As shown, the device includes a storage hopper 1 and a discharge port 2 at the bottom of the storage hopper 1. A fixed plate 3 is fixedly connected to the bottom of the storage hopper 1. A frame 4 is fixedly connected to both the left and right sides of the upper surface of the fixed plate 3. An arc-shaped groove 5 is opened on the lower surface of the fixed plate 3, and the arc-shaped groove 5 communicates with the discharge port 2. Two side plates 6 are fixedly connected to the left and right sides of the lower surface of the fixed plate 3. A rolling wheel 7 is rotatably connected between the two side plates 6. Multiple storage troughs 8 are opened on the outer surface of the rolling wheel 7. The upper surface of the rolling wheel 7 is sealed and rotates inside the arc-shaped groove 5. In this way, when the rolling wheel 7 rotates, the stored lime enters the multiple storage troughs 8 in sequence under the action of gravity. Then the lime in the storage troughs 8 will fall evenly on the ground and will not leak out from the gaps.

[0025] Before use, pour lime into the storage hopper 1. Under the action of gravity, the lime stored at this time enters the storage trough 8 on the rolling wheel 7 from the discharge port 2. When in use, simply pull the frame 4 to make the device rotate around the rolling wheel 7. At this time, the lime in the storage trough 8 will fall evenly on the ground, making the marked lime white line more uniform and avoiding material waste, making it more convenient to use.

[0026] like Figure 1-3 As shown: In this embodiment, the frame 4 includes a fixing block 401 and two L-shaped rods 402. One end of the L-shaped rod 402 is fixedly connected to the fixing plate 3, and the other end of the L-shaped rod 402 is fixedly connected to the fixing block 401. A pull rod 403 is provided on the fixing block 401, and a handle 404 is fixedly connected to the other end of the pull rod 403. A threaded hole is provided on the fixing block 401, and the pull rod 403 is threadedly connected to the threaded hole and fixedly connected to a limit block 405. A locking nut 406 is threadedly connected to the top of the outer surface of the pull rod 403.

[0027] When in use, loosen the locking nut 406, then turn the handle 404 to drive the pull rod 403 to rotate. Since the pull rod 403 is threadedly connected to the fixing block 401, the distance between the handle 404 and the fixing block 401 can be changed during the rotation of the pull rod 403. Then tighten the locking nut 406, so that it can be used by people of different heights.

[0028] like Figure 2 and Figure 3 As shown: In this embodiment, reinforcing rods 407 are fixedly connected to both the front and rear sides of the L-shaped rod 402, and the other end of the reinforcing rod 407 is fixedly connected to the fixing plate 3.

[0029] This improves the structural strength between the L-shaped rod 402 and the fixed plate 3, allowing the device to be moved more easily via the frame 4.

[0030] like Figure 1 and Figure 6 As shown: In this embodiment, there are two rollers 7. The two side plates 6 are rotatably connected to a rotating shaft 9 via a bearing. The two rollers 7 are fixedly connected to the left and right sides of the outer surface of the rotating shaft 9.

[0031] This allows the marked lime-white lines to be wider, making them easier for people to identify and avoiding material waste.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown: In this embodiment, a horizontal plate 10 is fixedly connected inside the storage hopper 1. Two sliding rods 11 are slidably inserted on the horizontal plate 10. The top end of the sliding rod 11 is fixedly connected to the L-shaped rod 402 through the pull rope 12. The bottom end of the sliding rod 11 is fixedly connected to a sealing block 13 corresponding to the discharge port 2. A spring 14 is sleeved on the outer surface of the sliding rod 11. A connecting plate 15 is fixedly connected to the back of the two L-shaped rods 402. A hook 16 is fixedly connected to the connecting plate 15. A hanging plate 17 corresponding to the hook 16 is fixedly connected to the pull rope 12.

[0033] By pulling the hanging plate 17, the pull rope 12 and the slide bar 11 move upward. During the movement, the slide bar 11 can move the sealing block 13 away from the discharge port 2 and compress the spring 14 until the hanging plate 17 is moved into the hook 16. At this time, the staff does not need to keep pulling the pull rope 12, ensuring that the stored lime can enter the storage tank 8 on the rolling wheel 7 from the discharge port 2 under the action of gravity. The pull rope 12 is in a relaxed state in the figure and is not shown in the figure. After the restoring force of the spring 14 causes the sealing block 13 to block the discharge port 2, the pull rope 12 can be tightened.

[0034] Working principle: Before use, pour lime into the storage hopper 1, then pull the hanging plate 17 to move the pull rope 12 and slide rod 11 upwards. During the movement, the slide rod 11 can move the sealing block 13 away from the discharge port 2 and compress the spring 14 until the hanging plate 17 is moved into the hook 16. At this time, the stored lime enters the storage trough 8 on the rolling wheel 7 from the discharge port 2 under the action of gravity. When in use, simply pull the handle 404 to make the device rotate around the rolling wheel 7. At this time, the lime in the storage trough 8 will fall evenly on the ground, making the marked lime white line more uniform and avoiding material waste. It is very convenient to use. After use, detach the hanging plate 17 from the hook 16. At this time, the restoring force of the spring 14 can make the sealing block 13 block the discharge port 2, thereby preventing lime from spilling. At this time, the marking device can still rotate around the rolling wheel 7, but the lime will not scatter, and the movement is more labor-saving.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A falling point marking device for foundation pit blasting flyrock trajectory tracking and identification, the device comprising a storage hopper (1) and a discharge port (2) opened at the bottom end of the storage hopper (1), characterized in that: The bottom end of the storage hopper (1) is fixedly connected with a fixed plate (3), the upper surface of the fixed plate (3) is fixedly connected with a rack (4) on the left and right sides, an arc-shaped groove (5) is arranged on the lower surface of the fixed plate (3), the arc-shaped groove (5) is communicated with the discharge port (2), two side plates (6) are fixedly connected on the lower surface of the fixed plate (3), a rolling wheel (7) is rotatably connected between the two side plates (6), a plurality of storage grooves (8) are arranged on the outer surface of the rolling wheel (7), and the upper surface of the rolling wheel (7) is sealingly rotatable in the arc-shaped groove (5).

2. The device for marking the landing point of the flying rock trajectory of foundation pit blasting according to claim 1, characterized in that, The rack (4) comprises a fixed block (401) and two L-shaped rods (402), one end of the L-shaped rod (402) is fixedly connected with the fixed plate (3), the other end of the L-shaped rod (402) is fixedly connected with the fixed block (401), a pull rod (403) is arranged on the fixed block (401), and the other end of the pull rod (403) is fixedly connected with a handle (404).

3. The device for marking the landing point of the flying rock trajectory of the foundation pit blasting according to claim 2, characterized in that, A threaded hole is arranged on the fixed block (401), the pull rod (403) is threadedly connected in the threaded hole and fixedly connected with a limiting block (405), and a locking nut (406) is threadedly connected on the top end of the outer surface of the pull rod (403).

4. The device for marking the landing point of the flying rock trajectory of the foundation pit blasting according to claim 3, characterized in that, The L-shaped rod (402) is fixedly connected with a reinforcing rod (407) on the front and back sides, and the other end of the reinforcing rod (407) is fixedly connected with the fixed plate (3).

5. The device for marking the landing point of the flying rock trajectory of the foundation pit blasting according to claim 4, characterized in that, The number of the rolling wheel (7) is two, a rotating shaft (9) is rotatably connected between the two side plates (6) through a bearing, and the two rolling wheels (7) are fixedly connected on the left and right sides of the outer surface of the rotating shaft (9).

6. The device for marking the landing point of the flying rock trajectory of the foundation pit blasting according to claim 5, characterized in that, The inside of the storage hopper (1) is fixedly connected with a horizontal plate (10), two slide rods (11) are slidingly inserted on the horizontal plate (10), the top end of the slide rod (11) is fixedly connected with the L-shaped rod (402) through a pull rope (12), the bottom end of the slide rod (11) is fixedly connected with a blocking block (13) corresponding to the discharge port (2), and a spring (14) is arranged on the outer surface of the slide rod (11).

7. The device for marking the landing point of the flying rock trajectory of the foundation pit blasting according to claim 6, characterized in that, The back surface of the two L-shaped rods (402) is fixedly connected with a connecting plate (15), the connecting plate (15) is fixedly connected with a hook (16), and the pull rope (12) is fixedly connected with a hanging plate (17) corresponding to the hook (16).

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